The CRESST-II cryogenic dark matter search aims for the detection of WIMPs via elastic scattering off nuclei in CaWO4 crystals. We present results from a low-threshold analysis of a single upgraded detector module. This module efficiently vetoes low energy backgrounds induced by α-decays on inner surfaces of the detector. With an exposure of 29.35 kg live days collected in 2013 we set a limit on spin-independent WIMP-nucleon scattering which probes a new region of parameter space for WIMP masses below 3 GeV/c2, previously not covered in direct detection searches. A possible excess over background discussed for the previous CRESST-II phase 1 (from 2009 to 2011) is not confirmed.

Angloher, G., Bento, A., Bucci, C., Canonica, L., Erb, A., von Feilitzsch, F., et al. (2014). Results on low mass WIMPs using an upgraded CRESST-II detector. THE EUROPEAN PHYSICAL JOURNAL. C, PARTICLES AND FIELDS, 74(12), 1-6 [10.1140/epjc/s10052-014-3184-9].

Results on low mass WIMPs using an upgraded CRESST-II detector

Canonica L;
2014

Abstract

The CRESST-II cryogenic dark matter search aims for the detection of WIMPs via elastic scattering off nuclei in CaWO4 crystals. We present results from a low-threshold analysis of a single upgraded detector module. This module efficiently vetoes low energy backgrounds induced by α-decays on inner surfaces of the detector. With an exposure of 29.35 kg live days collected in 2013 we set a limit on spin-independent WIMP-nucleon scattering which probes a new region of parameter space for WIMP masses below 3 GeV/c2, previously not covered in direct detection searches. A possible excess over background discussed for the previous CRESST-II phase 1 (from 2009 to 2011) is not confirmed.
Articolo in rivista - Articolo scientifico
low mass dark matter, cryogenic detector, low threshold
English
2014
74
12
1
6
3184
none
Angloher, G., Bento, A., Bucci, C., Canonica, L., Erb, A., von Feilitzsch, F., et al. (2014). Results on low mass WIMPs using an upgraded CRESST-II detector. THE EUROPEAN PHYSICAL JOURNAL. C, PARTICLES AND FIELDS, 74(12), 1-6 [10.1140/epjc/s10052-014-3184-9].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/466323
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